Process and apparatus for extracting bituminous oil from tar san

Details Process and apparatus for extracting bituminous oil from tar san Process and apparatus for extracting bituminous oil from tar san

1976-04-16

1978-08-29

Gantz, Delbert E.

Mineral oils: processes and products

Products and compositions

Lubricating oils

196 1452, C10G 104

Patent

active

041101944

ABSTRACT:
Tar sands are put into finely divided form, preferably by pressing them into sheets and flaking the sheets. The flakes are mixed with a solvent for the contained oils for a time sufficient to extract the oils. The resulting slurry is introduced beneath the surface of a body of water and the solids allowed to settle, while the solvent containing the oil rises to the top to form a liquid phase above the surface of the body of water. The wet solids and the oil-containing solvent are separately removed. After the oil is recovered from the solvent, as by fractional distillation, the solvent is recycled in the process, which is preferably carried on as a continuous operation.

REFERENCES:
patent: 2885339 (1959-05-01), Coulson et al.
patent: 3017342 (1962-01-01), Bulat et al.
patent: 3041267 (1962-06-01), Frame et al.
patent: 3547803 (1970-12-01), Barkman et al.
patent: 3553099 (1971-01-01), Savage et al.

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